======================== unified (from filesystem) ========================
                                         'bitrate'  '119.63'
                                        'duration'  '255'
                                          'artist'  'X'
                                     'text_people'  ''
                                         'release'  'Dimitri - Folk, Rock & Guitar'
                                           'title'  'I Must Not Think Bad Thoughts'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-3', "
 "'Q-CHART-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['80s', 'punk rock', 'punk', 'japanese', 'rock']"
                                     'discogstags'  "['hardcore', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '128.5'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Dimitri - Folk, Rock & Guitar'
'TBPM' (BPM (beats per minute))                     '128.5'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TIT2' (Title/songname/content description)         'I Must Not Think Bad Thoughts'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'X'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['hardcore', 'electronic']
'TXXX:lastfmtags'                                   ['80s', 'punk rock', 'punk', 'japanese', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.11 dB'
'TXXX:replaygain_track_peak'                        '0.499740'

========================== row from database ==========================
                                              'id'  1508210
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/FolkRockGuitar/X _I Must Not Think Bad Thoughts_-YMbn3hGkpeo.mp3
                                         'working'  None
                                         'bitrate'  119
                                    'duration_sec'  255
                                           'genre'  ifs-songwriter
                                        'filesize'  3821520
                                           'mtime'  1637330700
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FolkRockGuitar _I Thoughts_ YMbn3hGkpeo ifs songwriter
                                      'tag_artist'  X
                                     'tag_release'  Dimitri - Folk, Rock & Guitar
                                       'tag_title'  I Must Not Think Bad Thoughts
                                             'bpm'  128.5
                                    'search_title'  'bad':5 'i':1 'must':2 'not':3 'think':4 'thoughts':6
                                   'search_artist'  'x':1
                                  'search_release'  'dimitri':1 'folk':2,3 'guitar':5 'rock':4
                                     'search_rest'  'folk':7 'folkrockguitar':1 'gkpeo':11 'guitar':9 'i':2 'ifs':5 'rock':8 'songwriter':6 'thoughts':3 'ymbn3h':10 'ymbn3hgkpeo':4
                                    'search_combo'  'bad':5A 'dimitri':8C 'folk':9C,10C,19 'folkrockguitar':13 'gkpeo':23 'guitar':12C,21 'i':1A,14 'ifs':17 'must':2A 'not':3A 'rock':11C,20 'songwriter':18 'think':4A 'thoughts':6A,15 'x':7B 'ymbn3h':22 'ymbn3hgkpeo':16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-2', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  ['80s', 'punk rock', 'punk', 'japanese', 'rock']
                                        'tag_date'  
                                     'discogstags'  ['hardcore', 'electronic']

============================== file details ==============================
                                           'mtime'  1637330700.3484058  (2021-11-19 15:05:00)
                             'size'  3821520